Suzlon subsidiary REpower has expanded its 3.XM series of wind turbines by upgrading two of its existing models and introducing a new one.

The company says that two of its 3 MW wind turbine models - the 3.2M114 and the 3.4M104 - are being certified for use at sites with higher wind speeds.

The 3.4M104, which has a capacity of 3.4 MW, is particularly suitable for sites with high winds, REpower says, and it will be available beginning in 2014 in four hub heights - 80 meters, 93 meters, 100 meters and 128 meters - for IEC Class I sites.

The 3.2M114, which has a rated power of 3.2 MW, will be designed for sites with average wind speeds and will be available starting in mid-2013 in all three hub heights - 93 meters, 123 meters and 143 meters - in the corresponding IEC Class II wind class.

In addition to certification for IEC classes, the turbines are also being certified for the highest wind zones and terrain categories in accordance with the German DIBt guidelines.

In addition, REpower has introduced the 3.0M122 wind turbine, which is designed especially for low-wind sites. The new REpower 3.0M122 has a rated output of 3 MW and a rotor diameter of 122 meters. With a coated rotor surface of more than 11,600 square meters, it has the largest rotor diameter of any REpower onshore wind turbine.

The first version of the new turbine has a hub height of up to 139 meters and will be available starting in early 2013. The prototype will be erected in the fourth quarter of 2013.